Azkaban workflow manager.
Conductor is a microservices orchestration engine.
Persistent cluster-friendly scheduler for Java
The simple, stupid batch framework for Java
An extremely easy way to perform background processing in Java. Backed by persistent storage. Open and free for commercial use.
Code for Quartz Scheduler
Distributed lock for your scheduled tasks
A Light-weight Job Scheduling Framework
A simple Java Scheduler library with a minimal footprint and a straightforward API